The Terahertz Spectrum of Nitric Acid

ORAL

Abstract

A solid state tripler has been put into operation on the FASSST system at Ohio State University. This device converts the microwave input power from a swept OB-30 backward wave oscillator (240-375 GHz) to terahertz output power. We have used this device to record the rotational spectrum of nitric acid in the 875-1100 GHz range. Spectral assignments have now been made for the molecule in the ground, v9=1, and v8=1 states, and work is underway on the assignment of spectral lines in several other excited vibration states. Results will be reported.

*This work is supported by NASA.

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Authors

  • Paul Helminger

    • University of South Alabama

  • Douglas T. Petkie

    • Wright State University

  • Ivan Medvedev

  • Frank C. De Lucia

    • The Ohio State University